By reference of literature, a Ford notchback car model is built with two calculation domains set, and based on different heights of first layer, three meshes are generated. Then commercial computational fluid dy-namics code Ansys Fluent is used to conduct a simulation on the model, including its surface pressure filed, bound-ary layer flow, wake structure and aerodynamic drag coefficients. Finally some conclusions are drawn based on sim-ulation results.%参照参考文献建立了Ford阶背式轿车模型,设置两种计算域,并以不同的首层高度,生成了3种网格,采用计算流体动力学( CFD)软件Ansys Fluent对模型进行仿真,包括表面压力场、边界层流动、尾场结构和气动阻力系数的分析。最后根据仿真结果,得出若干结论。
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